Electrical Troubleshooting Guide; Power Supply (Smps) - JVC XV-BP1UB Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

1. POWER SUPPLY (SMPS)

no 5.3va
is the
F101 normal?
is Bd101 normal?
is the r101 normal?
is vcc (13v~27v)
supplied to ic101
Pin4?
is there about
2.5v at the ic103
Pin1?
is the ic102 normal?
Power line of main PcB is short
YES
YES
YES
YES
YES
YES
NO
replace F101 (same fuse)
NO
replace Bd101
NO
NO
is d102 normal?
check or replace the d102
NO
replace ic103
NO
replace ic102
3-30
replace r101
YES